APA引文

(2002). Headway: Intermediate- Upper- Advanced. New York: Mc Graw-Hill.

Trích dẫn kiểu Chicago

Headway: Intermediate- Upper- Advanced. New York: Mc Graw-Hill, 2002.

MLA引文

Headway: Intermediate- Upper- Advanced. New York: Mc Graw-Hill, 2002.

警告：这些引文格式不一定是100％准确.